[INFO] cloning repository https://github.com/mark-i-m/snake
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mark-i-m/snake" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmark-i-m%2Fsnake", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmark-i-m%2Fsnake'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a5823e47a3cea1efea8d7674a8e973a22862c358
[INFO] testing mark-i-m/snake against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmark-i-m%2Fsnake" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mark-i-m/snake on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mark-i-m/snake
[INFO] finished tweaking git repo https://github.com/mark-i-m/snake
[INFO] tweaked toml for git repo https://github.com/mark-i-m/snake written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/mark-i-m/snake already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf0674c57755560d516f8e35836dca3f3cc19a384f2dcac536e48fc5e6fa5299
[INFO] running `Command { std: "docker" "start" "-a" "cf0674c57755560d516f8e35836dca3f3cc19a384f2dcac536e48fc5e6fa5299", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf0674c57755560d516f8e35836dca3f3cc19a384f2dcac536e48fc5e6fa5299", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf0674c57755560d516f8e35836dca3f3cc19a384f2dcac536e48fc5e6fa5299", kill_on_drop: false }`
[INFO] [stdout] cf0674c57755560d516f8e35836dca3f3cc19a384f2dcac536e48fc5e6fa5299
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 238be932b3b0699c0ca07f3341cb185a24833314726f695323d44c87f704c2b8
[INFO] running `Command { std: "docker" "start" "-a" "238be932b3b0699c0ca07f3341cb185a24833314726f695323d44c87f704c2b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.1.39
[INFO] [stderr]    Compiling libc v0.2.26
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling gcc v0.3.51
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]    Compiling cursive v0.5.1
[INFO] [stderr]    Compiling serde v0.9.15
[INFO] [stderr]    Compiling owning_ref v0.2.4
[INFO] [stderr]    Compiling unicode-segmentation v1.2.0
[INFO] [stderr]    Compiling odds v0.2.25
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling num-integer v0.1.34
[INFO] [stderr]    Compiling ncurses v5.86.0
[INFO] [stderr]    Compiling num-iter v0.1.33
[INFO] [stderr]    Compiling num-bigint v0.1.39
[INFO] [stderr]    Compiling num-complex v0.1.38
[INFO] [stderr]    Compiling toml v0.3.2
[INFO] [stderr]    Compiling num-rational v0.1.38
[INFO] [stderr]    Compiling num v0.1.39
[INFO] [stderr]    Compiling snake v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.27s
[INFO] running `Command { std: "docker" "inspect" "238be932b3b0699c0ca07f3341cb185a24833314726f695323d44c87f704c2b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "238be932b3b0699c0ca07f3341cb185a24833314726f695323d44c87f704c2b8", kill_on_drop: false }`
[INFO] [stdout] 238be932b3b0699c0ca07f3341cb185a24833314726f695323d44c87f704c2b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 900d71e18f0aad9450cb743c3d78a016e4cd9cbb8293657f7b1037a5a7f6d613
[INFO] running `Command { std: "docker" "start" "-a" "900d71e18f0aad9450cb743c3d78a016e4cd9cbb8293657f7b1037a5a7f6d613", kill_on_drop: false }`
[INFO] [stderr]    Compiling snake v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "900d71e18f0aad9450cb743c3d78a016e4cd9cbb8293657f7b1037a5a7f6d613", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "900d71e18f0aad9450cb743c3d78a016e4cd9cbb8293657f7b1037a5a7f6d613", kill_on_drop: false }`
[INFO] [stdout] 900d71e18f0aad9450cb743c3d78a016e4cd9cbb8293657f7b1037a5a7f6d613
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5f2be20ef88dc027ee3dda6c943dc5e322df3c2c7993dde8e0a0e076ea9228ec
[INFO] running `Command { std: "docker" "start" "-a" "5f2be20ef88dc027ee3dda6c943dc5e322df3c2c7993dde8e0a0e076ea9228ec", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/snake-6ce9d5eb25e34b90)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5f2be20ef88dc027ee3dda6c943dc5e322df3c2c7993dde8e0a0e076ea9228ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f2be20ef88dc027ee3dda6c943dc5e322df3c2c7993dde8e0a0e076ea9228ec", kill_on_drop: false }`
[INFO] [stdout] 5f2be20ef88dc027ee3dda6c943dc5e322df3c2c7993dde8e0a0e076ea9228ec